Tokyo University of Science (東京理科大学, Tōkyō Rika Daigaku), formerly "Science University of Tokyo" or TUS, informally Rikadai (理科大) or simply Ridai (理大) is a private research university located in Shinjuku, Tokyo, Japan.

[2] The leading character appearing in Japanese novelist Soseki Natsume's novel Botchan graduated from Tokyo University of Science.

[3] As of 2016[update], it is the only private university in Japan that has produced a Nobel Prize winner and the only private university in Asia to produce Nobel Prize winners within the natural sciences field.

[7] Tokyo University of Science main campus is located in the Kagurazaka district of Shinjuku.

Apart from the main campus in Shinjuku, there are other campuses around the country: Tokyo University of Science has libraries in four different areas: Kagurazaka, Noda, Katsushika and Oshamambe.